Table 1. Comparison of T1 values obtained in the calf muscle (n = 6) and myocardium (n = 5) of healthy volunteers using conventional MOLLI fitting (Eq.1) and MOLLI fitting with inversion correction (Eq.2) at various flip angles (FA).
Calf Muscle (n = 6) | ||||||||
FA = 30° | FA = 60° | FA = 90° | ||||||
IR-SE | IR-FSE | MOLLI | MOLLI w. Inv | MOLLI | MOLLI w. Inv | MOLLI | MOLLI w. INV | |
T1 (ms) | 986±32 | 987±42 | 815±40 | 952±38 | 871±36 | 1016±27 | 907±35 | 1058±27 |
Inv. Eff. | 85.7±1.6% | 81.9±2.0% | N/A | |||||
P | N/A | 1 | <0.001 | 0.69 | <0.001 | 0.79 | 0.007 | 0.02 |
Fitting residual | 3.7±0.6% | 8.5±0.3% | 11.8±0.36% |
P values are given for comparison with the gold standard IR-SE method (calf) or IR-FSE method (myocardium).